Recognition. In order to evaluate the published conference papers, it is best to choose academic conferences that can be retrieved by ei or cpci. Generally, the conference papers retrieved by these two tools are highly recognized, and then we will see if we can identify them according to the requirements of the evaluation documents in our region. According to the past situation, it is suggested that the duplicate checking rate of senior engineer's title evaluation papers should be controlled within a certain proportion. Applicants are advised to pay attention to duplicate checking. If the repetition rate is too high, it will affect the passage of the paper, and then delay the progress of your senior title evaluation.